'\" t
.\"     Title: SPI_execute_plan
.\"    Author: The PostgreSQL Global Development Group
.\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/>
.\"      Date: 2011-12-01
.\"    Manual: PostgreSQL 9.1.2 Documentation
.\"    Source: PostgreSQL 9.1.2
.\"  Language: English
.\"
.TH "SPI_EXECUTE_PLAN" "3" "2011-12-01" "PostgreSQL 9.1.2" "PostgreSQL 9.1.2 Documentation"
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.SH "NAME"
SPI_execute_plan \- execute a plan prepared by \fBSPI_prepare\fR
.\" SPI_execute_plan
.SH "SYNOPSIS"
.sp
.nf
int SPI_execute_plan(SPIPlanPtr \fIplan\fR, Datum * \fIvalues\fR, const char * \fInulls\fR,
                     bool \fIread_only\fR, long \fIcount\fR)
.fi
.SH "DESCRIPTION"
.PP

\fBSPI_execute_plan\fR
executes a plan prepared by
\fBSPI_prepare\fR\&.
\fIread_only\fR
and
\fIcount\fR
have the same interpretation as in
\fBSPI_execute\fR\&.
.SH "ARGUMENTS"
.PP
SPIPlanPtr \fIplan\fR
.RS 4
execution plan (returned by
\fBSPI_prepare\fR)
.RE
.PP
Datum * \fIvalues\fR
.RS 4
An array of actual parameter values\&. Must have same length as the plan\*(Aqs number of arguments\&.
.RE
.PP
const char * \fInulls\fR
.RS 4
An array describing which parameters are null\&. Must have same length as the plan\*(Aqs number of arguments\&.
n
indicates a null value (entry in
\fIvalues\fR
will be ignored); a space indicates a nonnull value (entry in
\fIvalues\fR
is valid)\&.
.sp
If
\fInulls\fR
is
NULL
then
\fBSPI_execute_plan\fR
assumes that no parameters are null\&.
.RE
.PP
bool \fIread_only\fR
.RS 4
true
for read\-only execution
.RE
.PP
long \fIcount\fR
.RS 4
maximum number of rows to process or return
.RE
.SH "RETURN VALUE"
.PP
The return value is the same as for
\fBSPI_execute\fR, with the following additional possible error (negative) results:
.PP
SPI_ERROR_ARGUMENT
.RS 4
if
\fIplan\fR
is
NULL
or invalid, or
\fIcount\fR
is less than 0
.RE
.PP
SPI_ERROR_PARAM
.RS 4
if
\fIvalues\fR
is
NULL
and
\fIplan\fR
was prepared with some parameters
.RE
.PP

\fISPI_processed\fR
and
\fISPI_tuptable\fR
are set as in
\fBSPI_execute\fR
if successful\&.
